Water and moistureproof textile materials



40 of the fabric.

- Patented Apr. 19, 1938 PATENT OFFICE 2,114,320 warm: AND molsmnrao MATE f or'rnx mans George Schneider, Montclair, N. J., assignor to Celanese Corporation of America, a corporation of Delaware No Drawing.

the escape of odor and taste imparting constitucuts of the material. protected by the treated fabric. a

' An object of the invention isthe production of a fabric that is water andmoistureproof yet re-, tains its fabric-texture appearance. and heribility. Other objects of the invention will appear i'romthe following detailed description. I

Fabrics treated according to this invention are applicable to such uses as shower bath curv tains.v p cketbooks, moistureproof bags, tobacco pouches, raincoats, cigarette casesandall similar articles. In appearance the materials retain the structure, color, etc. of; the fabric base having however, a slight glazed appearance not found in the fabric laminated fabrics may 20, be joined, seamed, and shaped by cutting and sewing as are ordinary fabrics. These laminated fabrics maybe formed into bags and pouches or hemmed by bending in such a manner that at a least one treated side. of the fabric is contacted in the joint, fold or hem and then merely apply ing heat and pressure.

According to my invention I laminate a sheet; ing or foil of an organic derivative of cellulose to an organic derivative of cellulose fabric with so or without the aid of an adhesive or a lacquer. If no lacquer or adhesive is used, the two layers of material are welded together'by heat and pressure.

v The fabric employed maybe woven; knitted.

knotted, netted, or otherwise formed from yarns of organic derivatives of cellulose.

The fabric may have thereon formed by m s s. nr nstdr ins qr b empior nsdifw ferent types, or color of yarnsv in, the forming It is not necessary that all the yarns or filaments be of organic derivatives of cellulose but only that t y've round sufflciently i I I t pane aldehyde resin, vinyl resins, casein resin distributed in the fabric to form a substantial bindingof the foil crsheeting to the fabric. The yarns or filaments of organic, derivatives f wh h he fabric is fo d ma contain n r r ed he w h e fec m ter l's such as pigments, filling dyes or lak' es, i'lre retardants, softening agents, sizes and lubricants. Examples of pigments and filling materials are powderedmetals, powdered oxides of metals, metallic salts such as the carbonates, amp l d saM samwQmmun tha r mp tib h the "crem ri at es o M cellu se ar sum it sample Application November 14, 1933, Serial No. 697,927

(cl. lac-z) dyes or lakes are. the induline and nigrosine dyes. Examples'offlre retardants are beta chlornaphthalene, triphenyl phosphate and tricresyl phosphate. Examples of softening agents. are. glycol and glycerol oleates, stearates, etc. andthe 5 triethanolamine stearates, oleates, etc. These effect materials may beadded to thespinning solution from which thefllaments are formedor they may be added to the 'illaments while the filaments are in a, swollen condition due to a treatment with swelling'fagents such asv the thiocyanates of ammonium, sodium, potassium and calcium, dilute phenol, dilute acetone, pyridine ethers and esters of giycols, etc. The foil or sheeting layer of an organic derivative of cellulose tobe applied to the 'fabric may. be of any thickness depending upon theilexibility desired of the product. Foils having a thickness of 0.001 to,0.003" 'aresuitable for this purpose. This foil or'sheeting'preferably contains piss: ticizers such as triphenyl phosphate, dimethyl phthalate, diethyl phthalate, triacetin etc. and

may also contain coloring. materials and like, er

fect materials. Theplast-icizers maybe those that act. as solvents for the cellulose derivative at elevated temperatures yet that have no solvent action at ordinary temperatures;

This ioii or sheeting is laminated to the fabric by merely superimposing the two and subjectin them to heat and'pressnre. The temperature and pressurewill vary with the typeiof iabricand thickness of thefoil' or sheet employed and with the type of organic derivative of cellulose 'in-each. For general use temperatures around C. and a pressure of around lbs. are usually employed. The temperatureand pressure may be reduced and, in some instances, elevated temperature'may be entirely dispensed withby employing alacquer oradhesive betweenthe fabric and. foil or sheet.

Examples of, lacquers that may be employed are those containing nitrocellulose and/orcellulose acetate, phenol aldehyderesin, diphenylol prq'- and like substances dissolved in a volatile solvent.

If it is desired toavoid coalescence of the organic derivative of cellulose nlamentsin the fabricas much as possible, the, lacquer preferably com tains a derivative g: cellulose. diiiere'nt from that present in such filaments and, having different solubility characteristica; dissolved in any liquid that has llttleor no solvent. power for-the organic derivative ofcellulose '0f the filaments. Thus, if the fabric containsya s of acetone soluble celu osela s th -Jama e o e r o a n l a lsle n a new: m x

' (seal);

prising butyl acetate, that has substantially no solvent action on such cellulose acetate.

The lacquer or adhesive may be sprayed, brush: ed or smeared upon either the fabric or the formed layer material such as foil and sheeting. The lacquers may be applied to the material from solutions of any degree of viscosity depending upon the mode of application. I

The fabric and foil alternatively may be caused to adhere by interposing between them a thin layer of powder comprising an organic derivative of cellulose and plasticizer in intimate admixture and applying heat and pressure to the assembly.

For the purpose of maintaining a cloth-like feel to both sides of the product the moistureproofing foil or sheet may be sandwiched between two layers of fabric. However, even in the case .where the foil or sheet is exposed to view, the

texture of the cloth shows through giving the appearance of cloth slightly glazed and does not appear as a laminated fabric.

When using foil and welding the fabric thereto by pressure, the foil is embossed with the pattern of the fabric structure, so that the appearance of the assembly of being a laminated fabric is diminished.

For the purpose ofproduciirg a textile fabric appearing materialthat is proofed on both sides the textile fabric may besandwiched between two layers of foil or sheeting. This structure then consists of a baseof sheetm'aterial that-may be readily cemented to wood, enamelware, etc. a top of sheet material that may be washed easily'and a central sheet thatimparts .a fabric-like appearance to the assembly. I

Having described'my invention, what I'desire to secure by Letters Patent is: .1. Method of waterproofing a textile fabric consisting of yarns of organic derivativesof cellulose, which comprises superposing on said fabric a film or foil consisting substantially of an organic, derivative of-cellulose and subjecting the assembly to a temperature of about 95 C..and'a pressure ofabout 150 pounds to unite-the same by direct adhesion and coalescence. while maintaining the fabric character of the base.

2. Method of waterproofing a textile fabric consisting of yarns of cellulose acetate, which comprises superposlng on said fabric a, film or foil consisting substantially of cellulose acetate and subjecting, the assembly to a temperature of about 95 C. and a pressure of about 150-- pounds to unite the same by direct adhesion and of the above mnnbered patent a plasticizer therefor,-which I CERTIFICATE OFICORREC'I'ION.

I I I I I scones SCHNEIDER. I I a I 211; is hereby certified error appears in the printed specification coalescence, while maintaining the fabric charcence, while maintaining the fabric character of the outer layers. 1

4. Method of producing a waterproof textile fabric, which comprises interposinga fabric consisting of yarns-of cellulose acetate between two layers of film or foil consisting substantially of cellulose acetate and subjecting the assemby to a temperature of about 95 C. and a pressure of about 150 pounds to unite the same by direct adhesion and coalescence, while maintaining the fabric character of the intermediate layer,

5. Method of waterproofing a textile fabric consisting of yarns of organicderivatives of cellulose, which comprises superposing on said fabric a fllm or foil consisting substantially of an organic derivative of cellulose and a plasticizer therefor and subjecting the assembly to a temperature of about 95 C. and a pressure of about 150. pounds to unite the same by direct adhesion and coalescence, 'while maintaining the fabric character'ofthe base.

6. Method of waterproofing a textile fabric conprises superposing on said fabric a film 'or foil bly to atemperature of about 95 C. and a pres-- sisting of yarns of cellulose acetate, which com- 7 sure of about 150 pounds'to unite the same by direct adhesion and coalescence,- while maintaining the fabric character of the base. I 7. Method of waterproofing a textile fabric consisting of yarns of cellulose acetate, which comprises superposing .on said fabric a film or foil consistingsubstantially-of cellulose acetate and vent for the cellulose acetate at elevated tempera tures, and subjecting the assembly to a, temperature of about 95 C. and a pressure of about 150 pounds to unite the same by direct adhesion and plasticizer is a solcoalescence, while maintaining the fabric char- I aoter of the base.

GEORGE SCHNEIDER.

pr-11' 19, 93a

insert the word substantial 1y} read consisting of;' and that the the Patent Offic e Henry Van Arctic-1Q requiring correction-as follows 1 Page 2,-' second column, line 5, claim 5, after "consisting" V and 1 11156, .sax ne claim, for "containing? said- Letters tha should. be 5m with (this correctiontherein that the' same ma conform toithe' record of the case in l v Signed and sealed this 28th day" of June, A D 1958- (seal);

prising butyl acetate, that has substantially no solvent action on such cellulose acetate.

The lacquer or adhesive may be sprayed, brush: ed or smeared upon either the fabric or the formed layer material such as foil and sheeting. The lacquers may be applied to the material from solutions of any degree of viscosity depending upon the mode of application. I

The fabric and foil alternatively may be caused to adhere by interposing between them a thin layer of powder comprising an organic derivative of cellulose and plasticizer in intimate admixture and applying heat and pressure to the assembly.

For the purpose of maintaining a cloth-like feel to both sides of the product the moistureproofing foil or sheet may be sandwiched between two layers of fabric. However, even in the case .where the foil or sheet is exposed to view, the

texture of the cloth shows through giving the appearance of cloth slightly glazed and does not appear as a laminated fabric.

When using foil and welding the fabric thereto by pressure, the foil is embossed with the pattern of the fabric structure, so that the appearance of the assembly of being a laminated fabric is diminished.

For the purpose ofproduciirg a textile fabric appearing materialthat is proofed on both sides the textile fabric may besandwiched between two layers of foil or sheeting. This structure then consists of a baseof sheetm'aterial that-may be readily cemented to wood, enamelware, etc. a top of sheet material that may be washed easily'and a central sheet thatimparts .a fabric-like appearance to the assembly. I

Having described'my invention, what I'desire to secure by Letters Patent is: .1. Method of waterproofing a textile fabric consisting of yarns of organic derivativesof cellulose, which comprises superposing on said fabric a film or foil consisting substantially of an organic, derivative of-cellulose and subjecting the assembly to a temperature of about 95 C..and'a pressure ofabout 150 pounds to unite-the same by direct adhesion and coalescence. while maintaining the fabric character of the base.

2. Method of waterproofing a textile fabric consisting of yarns of cellulose acetate, which comprises superposlng on said fabric a, film or foil consisting substantially of cellulose acetate and subjecting, the assembly to a temperature of about 95 C. and a pressure of about 150-- pounds to unite the same by direct adhesion and of the above mnnbered patent a plasticizer therefor,-which I CERTIFICATE OFICORREC'I'ION.

I I I I I scones SCHNEIDER. I I a I 211; is hereby certified error appears in the printed specification coalescence, while maintaining the fabric charcence, while maintaining the fabric character of the outer layers. 1

4. Method of producing a waterproof textile fabric, which comprises interposinga fabric consisting of yarns-of cellulose acetate between two layers of film or foil consisting substantially of cellulose acetate and subjecting the assemby to a temperature of about 95 C. and a pressure of about 150 pounds to unite the same by direct adhesion and coalescence, while maintaining the fabric character of the intermediate layer,

5. Method of waterproofing a textile fabric consisting of yarns of organicderivatives of cellulose, which comprises superposing on said fabric a fllm or foil consisting substantially of an organic derivative of cellulose and a plasticizer therefor and subjecting the assembly to a temperature of about 95 C. and a pressure of about 150. pounds to unite the same by direct adhesion and coalescence, 'while maintaining the fabric character'ofthe base.

6. Method of waterproofing a textile fabric conprises superposing on said fabric a film 'or foil bly to atemperature of about 95 C. and a pres-- sisting of yarns of cellulose acetate, which com- 7 sure of about 150 pounds'to unite the same by direct adhesion and coalescence,- while maintaining the fabric character of the base. I 7. Method of waterproofing a textile fabric consisting of yarns of cellulose acetate, which comprises superposing .on said fabric a film or foil consistingsubstantially-of cellulose acetate and vent for the cellulose acetate at elevated tempera tures, and subjecting the assembly to a, temperature of about 95 C. and a pressure of about 150 pounds to unite the same by direct adhesion and plasticizer is a solcoalescence, while maintaining the fabric char- I aoter of the base.

GEORGE SCHNEIDER.

pr-11' 19, 93a

insert the word substantial 1y} read consisting of;' and that the the Patent Offic e Henry Van Arctic-1Q requiring correction-as follows 1 Page 2,-' second column, line 5, claim 5, after "consisting" V and 1 11156, .sax ne claim, for "containing? said- Letters tha should. be 5m with (this correctiontherein that the' same ma conform toithe' record of the case in l v Signed and sealed this 28th day" of June, A D 1958- 

